algebra

Suppose that a quadratic equation had two x-intercepts. How could you use the intercepts to find the vertex?

1. 👍
2. 👎
3. 👁
1. take the midpoint of the x-intercepts to get the x value of the vertex,
sub in that x value to get the y.

1. 👍
2. 👎

Similar Questions

1. math

Write an equation for the quadratic with x-intercepts (-1,0) and (3,0); and y-intercept (0,-2)!!! Please help ASAP!!! :(

2. Precalculus

Write an equation for the quadratic graphed below x-intercepts: (-2,0) and (1,0). y-intercept: (0,-2)

3. math

Find the x-intercepts of the polynomial y = x^2 - 4x + 3 I'm not sure how to approach this -- do I first factor it and then my x intercepts are (#, 0)? So, for example, factored would be (x - 3)(x - 1) I set those equal to 0 so my

4. Algebra

How many x or y intercepts can a quadratic function have? A) 0-2 x-intercepts and 0-1 y-intercept B) 0-2 x-intercepts and 1 y-intercept C) 2 x-intercepts and 1 y-intercept D) 1-2 x-intercepts and 0-1 y-intercept I think the answer

1. Algebra Quadratic Equations

When a quadratic equation has one solution, there will be one x-intercept; when there are two solutions, there will be two x-intercepts and when the equation has no solution, the graph will have no x-intercepts",is there another

The graph of a quadratic function can have 0, 1 or 2 x-intercepts. How can you predict the number of x-intercepts without drawing the graph or (completely) solving the related equation? Suppose that the graph of f(x) = ax^2+bx+c

3. Math

If a graph of a quadratic function can have 0, 1 or 2 x-intercepts. How can you predict the number of x-intercepts without drawing the graph or (completely) solving the related equation? Suppose that the graph of f(x) = ax^2+bx+c

4. Mathematics

Determine the equation of a quadratic function that satisfies each set of conditions. a) x-intercepts 1 and -1, y-intercept 3 b) x-intercept 3, and passing through the point (1, -2) c) x-intercepts -1/2 and 2, y-intercept 4 Please

1. Pre-calc

1. Find the equation for a quadratic function whose vertex is (2,5) and whose graph contains the point (-8,15). 2.What are the x- and y- intercepts for y=2x^2+x-6 Plesee explai. I want to learn to learn how to do them.

2. math

1. Mike opens a checking account with an initial deposit of \$200. Without making additional deposits, he withdraws \$25 each week. Kyle also opens a checking account. The function y = 25x + 200 represents the current balance in

3. algebra

graph each of the following equations below using their intercepts?. 6x - 3y - 12 = 0 find the intercepts Y intercept is when x is zero x intercept is when y is zero. plot those points, connect the dots.

4. algebra

find the x and y intercepts and graph the equation plotting the intercepts 6x-7y=-42